Delzon g



Patented Mar. .4, I899.

D. G. HOBBY.

OVEN GRATE.

(Application filed May 5, 1898.}

(No Model.)

,TNE uonms PETERS cov. mofoumoq WASHINGTUN, c. c.

UNITED STATES PATENT OFFICE.

DELZON G. HOBBY, OF ALBION, NElV YORK, ASSIGNOR OF ONE-HALF TO FRED L.FERRIS, OF SAME PLACE.

OVEN-GRATE.

SPECIFICATION forming part of Letters Patent No. 620,927, dated March14, 1899.

Application filed May 5 1898. Serial No. 679,793. (No model.)

To (0 whom it 77mg concern:

Be it known that I, DELZON G. HOBBY, a citizen of the United States,residing at Albion, in the county of Orleans and State of New York, haveinvented anew and useful Oven-Grate, of which the following is aspecification.

My invention relates to improvements in grates for domestic, ovens; andone object that I have in view is to provide means by which the grateproper may be readily withdrawn from the oven for the purpose ofinspecting the food thereon without subjecting the operator toinconvenient exposure to the heat from the oven.

A further object of the invention is to provide means by which thegrate-supporting frame may be securely clamped in the oven of anyordinary stove or cooking-range without alteration of the oven andeasily released from the oven and withdrawn therefrom for the purpose ofcleaning the oven.

A further object of the invention is to provide supporting and clampingdevices which are adjustable and reversible to support the grate inovens of different Widths.

A further object of the invention is to simplify the construction of thegrate and its supporting devices, with a view to obtaining strength,lightness, and durability and to effect economy in the manufacture ofthestructure.

With these ends in view the invention conview of the grate removed fromthe oven and partially withdrawn from its supportingframe. Fig. 3 is across-sectional elevation on a plane at right angles to the plane of thesection through the grate shown by Fig. 1, and'Fig. 4 is a detailperspective view of the clamp and its bracket. Fig. 5 is a similar viewof the adjustable hanger.

Like numerals of reference denote like an corresponding parts in each ofthe several figures of the drawings.

1 designates the grate proper, which con= sists of-a series oflongitudinal rails 2, a series of cross=bars 3, and the end bars 4, allof which are rigidly united together inany suitable way to provide alight and substantial construc tion. The longitudinal rails 2 areT-shaped in cross-section, and the longitudinal rails at the sides ofthe grate have their head-flanges to the cross-bars and peculiarlyconstructed to serve as guides for the grate 1, which is slidably fittedto the supporting-fraine 5 for the purpose of easy and quick withdrawaltherefrom or insertion into the same. The

. side rails 6 of the supporting-frame are formed with vertical flanges10 and overhanging flanges 11, and this construction of the rail 6provides guideways or tracks for the T- shaped side bars 2 of the grate,whereby the grate is slidably fitted to the rails 6 of thesupporting-frame to slide therein and to be held by said rails 6 againstedgewise displacement on the supporting-frame.

From the foregoing description, taken in connection with the drawings,it will be seen that I have provided a skeleton construction of thesupporting-frame which permits the heat to readily pass through theframe and air culate around the cooking vessels supported by the grate,and the grate is also of a skeleton construction to enable the heat tocirculate freely through the same. The employment of the T- shaped rails2 in the construction of the grate adds materially to the strength andstability thereof, and the vertical webs of these.T-

shaped rails are adapted to slidably fit on the longitudinal rails 7 ofthe grate-frame 5,whereby the grate is supported at points intermediateof its width by the rails of the frame 5, and said grate is slidablyfitted on said rails 7 and in the flanged guide-rail 6 of said frame 5.The longitudinal rails '7 of the grate 5 are provided with the upturnedfianges 12, against which are adapted to ride the webs of the T- shapedrails 2 of the grate 1, and the flanged rails of the grate and itssupporting-frame also assist in holding the grate against lateral oredgewise displacement in adjusting the grate to or removing it from thesupporting-frame 5. The grate and its supporting-frame are each made ofmetal, preferably of steel strips of the proper form, and the parts ofthe grate and the frame are united rigidly together to provide simple,strong, and durable structures.

The end of the frame 5 to which the reinforcing-bar 9 is attached isadapted to form the inner end of the grate-frame when the latter isadjusted and secured in the oven, and to this end of the frame isapplied the means for clamping the frame within the oven. As theclamping and suspending means impose considerable strain on the innerend of the frame when the weight or load is placed on the grate, it isdesirable to strengthen and reinforce the inner end of said frame, andthese conditions are met in my improvement by the employment of thestrengthening-bar, which is applied laterally to the top side of theinner end bar of the frame. This strengthening-bar is shorter than thewidth of the grate, so that its ends terminate within the side rails 6of the frame 5, and said bar is secured rigidly to the end bar of theframe by the vertical bolts 14, whereby the bar is removably secured tothe frame, so that it may be reversed end for end thereon.

To suspend the inner end of the grate within the oven, I employ aclamping device 15 at one corner of the frame 5 and a hanger 24: at theopposite corner andinnerend of the frame 5, said clamp and hanger beingdetachably secured to the end bar of the frame 5, to which thereinforcing-bar 9 is bolted for thepurpose of permitting the clamp andhanger to be removed and to be interchanged, thus adapting the frame 5to be readily secured in ovens of different constructions.

The clamping device 15 consists of an angular plate or bracket 16 and acam-locking disk 17. The bracket 16 is made in a single piece of metalof the angular form shown by Fig. 4c, and the foot 18 of said bracket isremovably secured to one corner of the frame 5 by a vertical bolt orbolts 19. The camlocking disk 17 is made in a single piece of metal,preferably of the disk shape shown by the drawings, and on one face ofthis disk are provided the cams 20, which are adapted to bind againstthe vertical stem of the angular bracket 16. The cam-formed disk has acentral perforation, through which passes a bolt 21, that is secured tothe angular plate or bracket, and this bolt serves to pivotally attachthe locking-disk to the bracket. The locking-disk is furthermoreprovided with an offstanding lever-arm 22, which is rigid or integralwith said disk, and to the extremity of this lever-arm is connected arod 23 or its equivalent, by which the operator is enabled to turn thelocking-disk in position to clamp the frame 5 without thrusting his handand arm through the oven in order to gain access to the locking devicefor the purpose of fastening the grate=frame 5 in the oven or removingsaid frame from the oven.

The hanger 24 is of angular form, (shown by Fig. 5,) and in thehorizontal arm of said hanger is provided a longitudinal slot 25. Thelower face of the long horizontal arm of this hanger is serrated toenable it to interlock with a similar face on a plate 26, which isremovably fastened, as at 27, to the end bar of the frame 5 at onecorner thereof. Through the slotted serrated arm of the hanger andthrough an opening in the serrated plate 26, which is fixed to the frame5, is passed a clamping-bolt 28, and the hanger is thus adjustablyattached to the frame 5, so that it may be pro-' jectedmore or lessbeyond the edge of said frame. The vertical arm 29 of the hanger isfitted against one side of the oven, and said hanger coacts within thecam-locking device, which is adapted to impinge against the op positeside of the oven to clamp the grateframe in place.

In applying my grate to the oven of an ordinary range or cook-stove theframe 5 is adj usted in the oven close to or upon the bottom thereof,and the hanger 24 is adjusted to have its vertical arm bear against oneside or wall of the oven, and the cam-locking disk 16 lies adjacent toand in contact with the opposite wall of the oven to which the hanger isfastened. The bolt 28 is inserted through the slot in the horizontal armof the hanger, so as to draw the serrated plate 26 into firm engagementwith the serrated arm of said hanger. The rod 23 is now adjusted to turnthe cam-locking disk on its pivotal bolt and cause the cam-faces thereofto ride against the angular bracket, whereby the lockingdisk is forcedinto tight engagement with the side of the oven. The supporting-frame 5is thus firmly attached and clamped to opposite walls of the oven at theinner side thereof, and the outer end of the frame adjacent to theoven-door may be supported in a slightly raised position by suitableledges, or the grateframe may rest on the bottom of the oven. Thegrate-frame may be moved horizontally upon the supporting-frame 5, andthe flanged rails of said grate are adapted to slide on thecorresponding rails of the frame and in the guide-rail 6 at'the sidethereof.

It is evident that the hanger 24 may be extended more or less beyond oneside of the frame for the purpose of attaching the frame to ovens ofdifferent widths, and the security of the attachment of the frame 5 tothe oven is increased by the adjustment of the camlocking disk. Thelocking device and the hanger are removably fitted t0 the inner end barof the supporting-frame, and the reinforcing-bar 9 is detachably securedto said frame, thus permitting of the ready reversal of the position ofthe reinforcing-bar and enabling the operator to change or shift thepositions of the clamp and hanger to adapt the supporting devices of theframe to different constructions of ovens.

The grate may be readily applied to or removed from the oven of anycook-stove or range of ordinary construction without alteration thereof.In the practical use of the grate it may be easily and quickly withdrawnfrom the frame and oven without requiring the operator to reach into theoven at the back part thereof, whereby the liability of burning thehands and arms and exposing the operator to heat from the oven isavoided. The parts may be readily Withdrawn from the oven for thepurpose of cleaning the latter, and the grate and frame permit the heatto circulate freely around the cooking utensils on the grate.

I am aware that changes in the form and proportion of parts and inthedetails of construction may be made bya skilled mechanic Withoutdeparting from the spirit or sacrificing the advantages of theinvention, and I.

therefore reserve the right to make such modifications as clearly fallwithin the scope of the invention.

In the practical service of the "rate means may be provided by which thesliding movement of the grate on the supporting-frame is limited, and inthe embodiment of the invention represented by the drawings a stopflange30 is attached to the frame, so as to project into the space between twoof the bars or rails thereof. This stop-flange lies in the path of theinner end bar of the slidable grate, and it is adapted to abut againstsaid bar when the grate is drawn outwardly a certain distance, thuspreventing the disengagement under normal conditions of the grate fromthe frame. It is to be understood, however, that this stop-flange may bethrown out of the path of the grate, so that the grate ing on thesupporting-frame and confined at its side edges within the overhangingguideflanges, and clamping devices mounted on the supporting-frame outof the path of the slidable grate and engaging with the ovenwalls tohold said supporting-frame firmly in place, substantially as described.

2. The combination with an oven, of a supporting-frame having theoverhanging guiderails at the sides thereof and the flangedsupporting-rails between the guide-rails, a slidable grate confined atits side edges loosely within said overhanging guide-rails and providedwith the depending flanged rails which rest upon and ride sidewiseagainst the flanged supporting-rails of said supporting-frame, andholding devices attached to the oven and the supporting-frame andarranged out of the path of the slidable grate, substantially asdescribed.

3. The combination with a supporting frame, of a hanger connected to oneside of the frame, a clamp connected to the opposite side of the frame,and a slidable grate, substantially as described.

4. The combination with a supportingframe and a slidable grate, of aclamp con= sisting of a bracket and a cam-disk pivoted to said bracketand adapted to have frictional engagement with an oven, substantially asdescribed. 5. The combination with a supportingframe, of anangularbracket clamped thereto and alocking-disk provided with cam-faces andpivoted to said bracket to bind against the same, substantially asdescribed.

6. The combination with a supp0rting= frame, of a bracket attachedthereto, a camlocking disk pivoted to said bracket, and means connectedto said disk for operating the same,- substantially as described.

7 The combination with a supportingframe, of a bracket attached thereto,a camformed disk provided with an angular arm, a pivotal bolt whichconnects the disk and bracket, and an operating-stem connected with saidarm of the disk, substantially as described.

8. The combination with a supportingframe and .a clamp attached thereto,of an extensible hanger also attached to said frame, substantially asdescribed.

9. The combination with a supportingframe and a clamp connected to oneside there-' of, of an extensible hanger attached to the opposite sideof the frame and adapted to be fastened to one of theoven=walls,substantially as described.

10. The combination with a supporting frame and a clamp attached to oneside there of, of a serrated face on the frame near the other sidethereof, an extensible hanger having a serrated face to interlock withthe face on the frame, and a bolt to secure said hanger at differentpositions on the frame, substantially as described.

11. The combination with a supporting frame, of a clamp removablyattached to one side of the frame, and a hanger also attached to theframe removably but on the opposite side thereof from the clamp; saidhanger and clamp being interchangeable, substantially as described.

12. The combination with a supportingframe, of a strengthening-barremovably at my own I have hereto aflixed my signature in tached to oneend of said frame, and the inthe presence of two witnesses.

terchan eable clamp and hanger removably attached to the end of theframe at the re- DELZON HOBBY 5 speetive ends of the strengthening-barthere- Witnesses:

0n, substantially as described. SANFORD O. BESSAC,

In testimony that I claim the foregoing as M. N. DEAN.

